GB2038044B - Digital alarm clock - Google Patents
Digital alarm clockInfo
- Publication number
- GB2038044B GB2038044B GB7943897A GB7943897A GB2038044B GB 2038044 B GB2038044 B GB 2038044B GB 7943897 A GB7943897 A GB 7943897A GB 7943897 A GB7943897 A GB 7943897A GB 2038044 B GB2038044 B GB 2038044B
- Authority
- GB
- United Kingdom
- Prior art keywords
- alarm clock
- projection
- digital alarm
- detecting
- leaves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B23/00—Arrangements producing acoustic signals at preselected times
- G04B23/02—Alarm clocks
- G04B23/025—Signal triggering
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/20—Indicating by numbered bands, drums, discs, or sheets
- G04B19/205—Indicating by numbered bands, drums, discs, or sheets by means of sheets
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B23/00—Arrangements producing acoustic signals at preselected times
- G04B23/02—Alarm clocks
- G04B23/021—Controls (winding up the alarm; adjusting and indicating the waking time)
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C21/00—Producing acoustic time signals by electrical means
- G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
First and second detecting wheels, the phases of which can be varied in accordance with the setting of an alarm signaling time, are provided in correspondence to an hour time wheel and a minute time wheel respectively. Among a plurality of leaves adapted for digitally indicating the minute time, some of the leaves, which occur at a constant interval of minutes, are each provided with a projection, and a third detecting means is provided to detect the presence or absence of this projection. An alarm device is actuated when the first and second detecting wheels and third detecting means are concurrently actuated.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16374178A JPS5589774A (en) | 1978-12-28 | 1978-12-28 | Alarm time detector for leaf type digital watch |
JP16374078A JPS5589773A (en) | 1978-12-28 | 1978-12-28 | Time detector for leaf type digital watch |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2038044A GB2038044A (en) | 1980-07-16 |
GB2038044B true GB2038044B (en) | 1983-02-09 |
Family
ID=26489105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7943897A Expired GB2038044B (en) | 1978-12-28 | 1979-12-20 | Digital alarm clock |
Country Status (5)
Country | Link |
---|---|
US (1) | US4287586A (en) |
CH (1) | CH638366B (en) |
DE (1) | DE2952643A1 (en) |
FR (1) | FR2445548A1 (en) |
GB (1) | GB2038044B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112180710B (en) * | 2019-05-31 | 2021-09-10 | 福建瑞达精工股份有限公司 | High-precision clock alarm starting point rapid calibration method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1903715A1 (en) * | 1969-01-25 | 1970-08-27 | Kieninger & Obergfell | Alarm clock with intermittent electrical alarm signaling |
DE2028679A1 (en) * | 1970-06-11 | 1971-12-16 | Kieninger & Obergfell | Digital clock with alarm device |
JPS4857673A (en) * | 1971-11-18 | 1973-08-13 | ||
DE2428490A1 (en) * | 1973-06-16 | 1975-01-09 | Seikosha Kk | CLOCK |
GB1571753A (en) * | 1977-03-25 | 1980-07-16 | Seiko Koki Kk | Alarm time piece |
JPS5432357A (en) * | 1977-08-16 | 1979-03-09 | Rhythm Watch Co | Digital clock |
JPS5441165A (en) * | 1977-09-07 | 1979-04-02 | Seiko Koki Kk | Time detector for leaf type digital timepiece |
DE2834949A1 (en) * | 1977-08-29 | 1979-03-22 | Seiko Koki Kk | ALARM TIME DETECTION DEVICE FOR ONE WATCH |
-
1979
- 1979-12-20 GB GB7943897A patent/GB2038044B/en not_active Expired
- 1979-12-27 US US06/107,517 patent/US4287586A/en not_active Expired - Lifetime
- 1979-12-27 FR FR7931776A patent/FR2445548A1/en active Pending
- 1979-12-28 DE DE19792952643 patent/DE2952643A1/en not_active Withdrawn
- 1979-12-28 CH CH1151679A patent/CH638366B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH638366B (en) | |
CH638366GA3 (en) | 1983-09-30 |
FR2445548A1 (en) | 1980-07-25 |
GB2038044A (en) | 1980-07-16 |
DE2952643A1 (en) | 1980-07-10 |
US4287586A (en) | 1981-09-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |